Iran’s reassertion of its sovereign right to control shipping in the Strait of Hormuz on June 27, 2026, following an attack on a Taiwanese container ship and the International Maritime Organization’s (IMO) decision to pause its vessel evacuation role, has brought one of the world’s most critical maritime chokepoints to the centre of global strategic attention. The Strait of Hormuz, a narrow passage of roughly 33 kilometres connecting the Persian Gulf to the Gulf of Oman, is the transit route for approximately 20 percent of the world’s traded oil and 25 percent of global liquefied natural gas (LNG) supply. Iran’s insistence that it — and Oman — must jointly manage the Strait, and its right to levy tolls on transiting vessels, directly challenges the established principle of freedom of navigation that underpins the rules-based international order.
The immediate context involves a complex sequence of events. Following the Israel-Iran conflict of 2025-26 and the interim peace deal, the GCC states (Bahrain, Kuwait, Oman, Qatar, Saudi Arabia, and the UAE), in a joint statement with the United States, rejected Iran’s assertion that it could charge tolls on vessels and insisted on ‘free, unconditional, and unrestricted navigation’. Iran’s Deputy Foreign Minister Kazem Gharibabadi responded on X, stating that ‘safe passage cannot be guaranteed under ambiguous arrangements’. The subsequent attack on the Ever Lovely — a Taiwanese container ship — and Iran’s state media reports of turning back three tankers attempting ‘unauthorised passage’ have created a crisis with global energy and economic implications.
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For UPSC aspirants, this topic is highly significant for GS-II (International Relations, India’s Foreign Policy, Energy Security) and GS-III (India’s Economy, Energy Dependence, Current Affairs). India imports nearly 90 percent of its crude oil, with a significant portion transiting through the Strait of Hormuz.
Background: The Strait of Hormuz as a Global Chokepoint
Five Important Key Points
- The Strait of Hormuz, at its narrowest only 33 km wide, is the world’s most important oil transit chokepoint; approximately 20 million barrels of oil per day transit the Strait, representing about 20 percent of global oil trade.
- Iran and Oman exercise joint jurisdiction over the Strait under international law; UNCLOS provides for ‘transit passage’ rights for all vessels through international straits.
- Iran has repeatedly threatened to close the Strait during periods of heightened tension — including during the 1980-88 Iran-Iraq War (the ‘Tanker War’), in 2011-12 in response to Western sanctions, and in 2019 following drone attacks on Saudi oil facilities.
- Drone-based drug trafficking from across the Pakistan border has seen a fivefold increase in India over the past five years, underscoring how maritime security challenges intersect with India’s border security concerns.
- The IMO Secretary-General reported that approximately 500 ships were stranded in the Persian Gulf area requiring evacuation, a process that could take five weeks.
Historical Background: Iran’s Strategic Use of the Hormuz
Iran’s geographical position gives it unparalleled leverage over global energy markets. The Strait lies partly within Iranian territorial waters (12 nautical miles from the Iranian coast), giving Tehran a legal basis — disputed by Western powers and the US Navy — to assert regulatory authority. During the Iran-Iraq War (1980-88), both countries attacked shipping in what became known as the ‘Tanker War’, prompting the US Navy to escort Kuwaiti tankers (Operation Earnest Will, 1987-88) — the largest US naval convoy operation since World War II.
In 2011-12, Iran threatened to close the Strait in response to EU and US sanctions over its nuclear programme, causing significant oil price spikes. The threat was deterred by the US Fifth Fleet’s presence in Bahrain. In 2019, Iran seized British oil tanker Stena Impero following Britain’s detention of an Iranian tanker at Gibraltar, demonstrating its willingness to use maritime seizure as a coercive tool.
International Law and the UNCLOS Framework
The legal framework governing the Strait of Hormuz is anchored in UNCLOS (United Nations Convention on the Law of the Sea, 1982). Under UNCLOS Part III, vessels — including warships — have an unimpeded right of ‘transit passage’ through international straits used for international navigation, even if those straits lie within the territorial seas of coastal states. Iran ratified UNCLOS in 1982, but has since argued that its application is contingent on recognition of Iran’s broader maritime interests. Iran’s insistence on toll collection violates UNCLOS Article 44, which explicitly prohibits coastal states from ‘hamper[ing] transit passage’.
The US and GCC’s joint statement references the principle of ‘free, unconditional, and unrestricted navigation’, which aligns with UNCLOS Article 38 (right of transit passage). Iran’s counter-argument — that the Strait should be ‘governed by Iran and Oman in line with the terms of the interim deal’ — effectively seeks to replace multilateral UNCLOS governance with a bilateral arrangement that gives Tehran veto power over Strait access.
India’s Energy Security and Strategic Implications
India’s vulnerability to Hormuz disruptions is acute. India imports nearly 90 percent of its crude oil and approximately 50 percent of its natural gas requirements. The Reserve Bank of India sold over $53 billion in the foreign exchange market in FY 2025-26 to support the rupee — the largest intervention in more than a decade — partly due to energy price pressures. India’s foreign exchange reserves, which had touched $720 billion, have declined to approximately $681 billion. A sustained Hormuz crisis that drives oil prices above $100 per barrel would widen India’s trade deficit, weaken the rupee further, and exacerbate inflationary pressures across the economy.
India has strategic interests in maintaining Hormuz navigability beyond energy imports. India’s diaspora in the GCC, numbering approximately 9 million, contributes significantly to India’s remittance income (over $135 billion in FY 2024-25). A political or military crisis in the Gulf could disrupt both trade flows and diaspora remittances simultaneously.
India’s Diplomatic Position and Foreign Policy
India’s foreign policy towards the Iran-US-GCC dynamic has been characterised by what New Delhi calls ‘strategic autonomy’. India maintained oil imports from Iran even during the 2012-19 sanctions period, only reducing them when direct threats to Indian financial institutions made continued transactions legally risky. India’s relationship with Iran involves not just energy trade but strategic interests: the Chabahar Port project, India’s alternative to Pakistani port routes, and Iranian cooperation on connectivity to Afghanistan and Central Asia.
The India-Iran relationship has been further complicated by the US’s 60-day sanctions waiver in June 2026, which briefly reopened Iranian crude supply at discounted rates. India’s approach — engaging cautiously while monitoring the US-Iran deal’s durability — reflects its long-standing strategy of maintaining functional relationships across competing geopolitical camps.
Bihar Connection
Bihar’s large working-age population contributes substantially to the Gulf labour migration stream; Bihari workers in Saudi Arabia, UAE, Kuwait, and Oman send remittances that constitute a major source of household income in districts like Sitamarhi, Madhubani, Darbhanga, and Saran. A Gulf crisis would directly affect these remittance flows. Additionally, Bihar’s agricultural sector is highly dependent on fertilisers, and urea production in India relies heavily on imported LNG — much of which transits through the Hormuz. LNG price spikes caused by Hormuz disruptions would raise fertiliser costs, increasing the input burden on Bihar’s farming households.
Way Forward
A lasting resolution to the Hormuz crisis requires multilateral diplomatic engagement. The IMO should resume its facilitation role once Iran provides verifiable security guarantees for transiting vessels. India should actively engage both Iran and the GCC in diplomatic consultations, leveraging its relationships with both sides to advocate for Hormuz’s continued navigability. In the medium term, India should accelerate its strategic petroleum reserve expansion (currently targeting 12.5 million metric tonnes) and diversify its oil import sources towards African, American, and Russian suppliers to reduce Hormuz dependence.
Relevance for UPSC and SSC Examinations
GS-II (International Relations): India’s foreign policy, energy security diplomacy, India-Iran-US relations, maritime law (UNCLOS), India’s strategic autonomy. GS-III (Economy): India’s energy dependence, oil price impact on rupee, current account deficit, fertiliser import dependence, remittances. Essay: ‘Chokepoints and Power: The Geopolitics of Global Energy Security’. Key terms: UNCLOS, Strait of Hormuz, transit passage, GCC, Fifth Fleet, Chabahar Port, IMO, strategic petroleum reserve, energy security, non-alignment.